The command "git pull" is equivalent to "git fetch" followed by _______.
- git branch
- git commit
- git merge
- git push
The command "git pull" is equivalent to "git fetch" followed by git merge. This combination fetches changes from the remote repository and merges them into the current branch. It helps in keeping your local branch up-to-date with the remote branch.
What is the main difference between Docker and Kubernetes?
- Docker is a containerization platform, while Kubernetes is a container orchestration platform.
- Docker is only for development purposes, while Kubernetes is for production environments.
- Docker is open-source, while Kubernetes is proprietary.
- Docker manages individual containers, while Kubernetes manages clusters of containers.
The main difference between Docker and Kubernetes lies in their functionalities. Docker is primarily a containerization platform, used to package and run applications in isolated environments called containers. On the other hand, Kubernetes is a container orchestration platform that automates the deployment, scaling, and management of containerized applications. While Docker manages individual containers, Kubernetes manages clusters of containers, offering features like load balancing, auto-scaling, and self-healing.
In which situations is the Factory Method design pattern useful?
- Creating objects with multiple possible representations
- Decoupling the concrete classes from the client
- When a class cannot anticipate the class of objects it must create
- When the system needs to be independent of how its objects are created, composed, and represented
The Factory Method design pattern is useful when you want to decouple the client code from the concrete classes it uses, allowing flexibility in object creation without changing the client code.
How can you center align an element horizontally using CSS?
- align: center;
- horizontal-align: center;
- margin: auto;
- text-align: center;
To center align an element horizontally in CSS, you can use margin: auto;. This property automatically distributes the remaining space on both sides of the element, centering it within its container.
In Docker, a _______ defines the environment in which a container runs, including base image, dependencies, and commands to run.
- Blueprint
- Configuration
- Dockerfile
- Manifest
In Docker, a Dockerfile defines the environment in which a container runs. It specifies the base image, dependencies, and commands needed to create the container.
In logging, _______ is the process of collecting, storing, and analyzing log data.
- Log Aggregation
- Log Analysis
- Log Compression
- Log Parsing
In logging, log aggregation is the process of collecting, storing, and analyzing log data from various sources. It helps in centralizing logs for easier management and analysis, providing insights into system performance and issues.
In the "Elements" tab of Browser Developer Tools, what does the "Computed" panel display?
- Computed styles for the selected element
- Server-side computed values
- Styles applied by user scripts
- Upcoming changes to the DOM
The "Computed" panel in the "Elements" tab of Browser Developer Tools displays the computed styles for the selected HTML element. It shows the final styles applied, considering all CSS rules and inheritance.
Which of the following is a JavaScript framework for building user interfaces, developed by Facebook?
- Angular
- Ember.js
- React
- Vue.js
React is a JavaScript framework developed by Facebook for building user interfaces. It is widely used for creating interactive and dynamic UI components in web applications.
The HTML tag with type="checkbox" creates a _______.
- Checkbox
- Radio Button
- Text Field
- Dropdown Menu
The HTML tag with type="checkbox" creates a checkbox input element. Checkboxes allow users to select multiple options from a list.
What does the "Red-Green-Refactor" cycle represent in TDD?
- A color-coded status for the code in TDD, indicating its progress.
- A visual representation of code quality.
- The cycle of writing failing tests (Red), making them pass (Green), and then improving the code without changing its behavior (Refactor).
- The stages a developer goes through when debugging code.
The "Red-Green-Refactor" cycle is fundamental to Test-Driven Development (TDD). It involves writing failing tests (Red), making them pass (Green), and then improving the code without changing its behavior (Refactor). This iterative process ensures code reliability and maintainability.